Two ice skaters stand facing each other at rest on a frozen pond. They push off against one another and the 48 kg skater acquires a speed of 0.67 m/s. If the other skater acquires a speed of 0.83 m/s, what is her mass in kilograms?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.